package com.draem0507.refactor;

/**
 * @title 提取子类
 * @desc
 * @atuh lwx
 * @createtime on 2015/11/14 14:29
 */
public class Day_20 {



    public interface BasketBall extends   Ball2{


        //打气
        public void pumpUp();
    }


    public interface Ball2
    {

        public void play();

        public void size();

    }




    public interface Ball
    {

        public void play();

        public void size();

        //打气
        public void pumpUp();



    }

}
